Product Description
Restore proper airflow and peak performance to your HVAC system with the LAU DD11-11M Blower Wheel. Designed as a direct replacement for Carrier part LA22ZA120, this clockwise (CW) rotating concave blower wheel features a 1/2-inch bore and durable construction for long-lasting operation. Ideal for residential and light commercial HVAC systems, it ensures efficient air movement and quiet performance.
Compatibility
Fits select Carrier, Bryant, and Payne HVAC systems, including:
- Carrier LA22ZA120 blower assemblies
- Compatible with various furnace and air handler models using a 1/2" bore, CW rotation, and concave blade design
Always verify your unit's model number and specifications to ensure compatibility.
Replaces / Cross-Reference
- Carrier LA22ZA120
- LAU DD11-11M
Technical Specifications
- Model: 0573710031X
- Outside Wheel Diameter: 11-5/8"
- Outside Length: 11-7/8"
- Bore Size: 1/2"
- Rotation: Clockwise (CW)
- Blade Type: Concave forward-curved
- Material: Galvanized steel
- Mounting: Set screw hub
- Number of Blades: 53
Symptoms This Part Fixes
- Weak or no airflow from vents
- Unusual noises (rattling, scraping) from blower compartment
- HVAC system overheating or short-cycling
- Poor heating or cooling performance
Why This Part Fails
- Wear and tear: Prolonged use can cause blade fatigue or imbalance
- Debris buildup: Dust and dirt can unbalance the wheel or damage fins
- Corrosion: Moisture exposure may lead to rust or deterioration
- Motor shaft issues: Misalignment or improper mounting can cause failure
Installation Notes
- Verify Rotation and Fit: This blower wheel is designed for clockwise (CW) rotation with a 1/2" bore. Double-check your original part's specs to ensure compatibility.
- Inspect Motor Shaft: Before installation, clean and inspect the motor shaft for rust, wear, or damage to ensure a secure and balanced fit.
- Check for Clearance: Ensure the new wheel has proper clearance inside the blower housing and spins freely without contact or wobble.
- Use Proper Tools: You'll need a hex key or appropriate diver to tighten the set screw. Avoid overtightening, which can damage the hub or misalign the wheel.
